測試環境：

Linux系統版本Asianux4_x64：Linux localhost.localdomain 2.6.32-279.2.1.el6.x86_64 #1 SMP Tue Aug 14 11:42:24 CST 2012 x86_64 x86_64 x86_64 GNU/Linux

本質上Asianux4_x64就是基于Redhat6企業版的。

出現問題：

安裝完系統之后，想通過yum安裝一些程序，但是提示錯誤：

Loaded plugins: axtu-plugin, refresh-packagekit, security

Please register, or you can not connect to Asianux Update Server!

Setting up Install Process

No package gcc available.

Error: Nothing to do

以上的錯誤提示我們必須先注冊，否則無法連接到Asianux的yum服務器。

那么我們不注冊，怎么更換yum源為可以直接使用的網易yum源呢？

解決方案：

1. 卸載Asianux自帶的yum源

[root@localhost 桌面]# rpm -aq | grep yum | xargs rpm -e --nodeps

[root@localhost 桌面]# whereis yum

yum: /etc/yum

[root@localhost 桌面]# rm -rf /etc/yum

2. 下載yum安裝包

下載地址：http://mirrors.163.com/centos/6/os/x86_64/Packages/

從這個地址中下載需要的包：

python-iniparse-0.3.1-2.1.el6.noarch.rpm

yum-3.2.29-60.el6.centos.noarch.rpm

yum-metadata-parser-1.1.2-16.el6.x86_64.rpm

yum-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm

如果不是通過瀏覽器找到具體文件下載，可以通過wget下載。

3. 安裝yum的相關rpm包

[root@localhost myself]# rpm -ivh python*

warning: python-iniparse-0.3.1-2.1.el6.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEY

Preparing...??????????????? ########################################### [100%]

1:python-iniparse??????? ########################################### [100%]

[root@localhost myself]# rpm -ivh yum*

warning: yum-3.2.29-69.el6.centos.noarch.rpm: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY

Preparing...??????????????? ########################################### [100%]

1:yum-metadata-parser??? ########################################### [ 33%]

2:yum-plugin-fastestmirro########################################### [ 67%]

3:yum??????????????????? ########################################### [100%]

[root@localhost myself]#

4. 配置網易源

如果 /etc/yum.repos.d/rhel-debuginfo.repo 這個文件存在的話就備份一下：

[root@localhost myself]# mv /etc/yum.repos.d/rhel-debuginfo.repo /etc/yum.repos.d/rhel-debuginfo.repo.bak

如果本來就沒有，就新建：

[root@localhost myself]# touch /etc/yum.repos.d/rhel-debuginfo.repo

編輯新建的文件，加入網易源：

[root@localhost myself]# vim /etc/yum.repos.d/rhel-debuginfo.repo

[base]

name=CentOS-$releasever - Base

baseurl=http://mirrors.163.com/centos/6/os/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#released updates

[updates]

name=CentOS-$releasever - Updates

baseurl=http://mirrors.163.com/centos/6/updates/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#packages used/produced in the build but not released

#[addons]

#name=CentOS-$releasever - Addons

#baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/

#gpgcheck=1

#gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras

baseurl=http://mirrors.163.com/centos/6/extras/$basearch/

gpgcheck=1

gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus

baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/

gpgcheck=1

enabled=0

保存退出編輯器即可。

5. 清理緩存

[root@localhost myself]# yum clean all

已加載插件：fastestmirror

Cleaning repos: base extras updates

清理一切

6. 將服務器上的軟件包信息緩存到本地,以提高搜索安裝軟件的速度

[root@localhost 桌面]# yum makecache

已加載插件：fastestmirror

Determining fastest mirrors

base???????????????????????????????????????????????????? | 3.7 kB???? 00:00

base/group_gz??????????????????????????????????????????? | 219 kB???? 00:01

base/filelists_db??????????????????????????????????????? | 6.3 MB???? 01:40

base/primary_db????????????????????????????????????????? | 4.6 MB???? 01:06

base/other_db??????????????????????????????????????????? | 2.8 MB???? 00:40

extras?????????????????????????????????????????????????? | 3.4 kB???? 00:00

extras/filelists_db????????????????????????????????????? |? 30 kB???? 00:00

extras/prestodelta?????????????????????????????????????? |? 601 B???? 00:00

extras/primary_db??????????????????????????????????????? |? 27 kB???? 00:00

extras/other_db????????????????????????????????????????? |? 30 kB???? 00:00

updates????????????????????????????????????????????????? | 3.4 kB???? 00:00

updates/filelists_db???????????????????????????????????? | 1.0 MB???? 00:14

updates/prestodelta????????????????????????????????????? |? 93 kB???? 00:01

updates/primary_db?????????????????????????????????????? | 1.3 MB???? 00:19

updates/other_db???????????????????????????????????????? |? 15 MB???? 03:43

元數據緩存已建立

至此，網易yum源已經安裝成功。